Measuring impaired control over cannabis use: Initial evaluation of the Impaired Control Scale-Cannabis (ICS-C)

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dc.contributor.authorTaguba, Korina Kaye
dc.contributor.authorKeough, Matthew T.
dc.contributor.authorBravo, Adrian J.
dc.contributor.authorWardell, Jeffrey D.
dc.date.accessioned2022-07-04T18:31:05Z
dc.date.available2022-07-04T18:31:05Z
dc.date.issued2022-05-27
dc.description.abstractBackground: Impaired control is a central concept in addiction. Impaired control over alcohol has been associated with heavy drinking and alcohol-related problems in young adults, but there is less research on impaired control over cannabis. Currently, there is no validated self-report instrument that comprehensively assesses impaired control over cannabis use. This study examined the factor structure, reliability, and validity of a new measure, the Impaired Control Scale-Cannabis (ICS-C), which was adapted from the Impaired Control Scale (ICS) for alcohol (Heather et. al, 1993). Method: The sample consisted of students at two Canadian universities who reported past-month cannabis use (N=362; 63% women; 66% White, mean age=19.91). Participants completed an online survey including the ICS-C and ICS, along with measures of cannabis use, cannabis problems, alcohol use, impulsivity, and self-regulation. Results: After trimming problematic and redundant items, the final exploratory factor analysis of the ICS-C items yielded two factors: Attempted Control (attempts to control cannabis use) and Failed Control (unsuccessful attempts to limit cannabis use). High correlations between the ICS-C subscales and the Impaired Control subscale of the Marijuana Consequences Questionnaire provided evidence for convergent validity. Support for concurrent and discriminant validity was observed in the associations of the ICS-C subscales with cannabis use, cannabis problems, impulsivity, self-regulation, alcohol use, and the alcohol ICS. Conclusions: The ICS-C is a promising tool for assessing impaired control over cannabis in young adults. Future research should further validate the ICS-C and examine its potential clinical utility for identifying individuals at risk for cannabis use disorder.en_US
dc.identifier.citationTaguba, K.K., Keough, M.T., Bravo, A.J., Wardell., J.D. (2022). Measuring impaired control over cannabis use: Initial evaluation of the Impaired Control Scale-Cannabis (ICS-C). Substance Use & Misuse, 57, 1303-1312. doi: 10.1080/10826084.2022.2079137en_US
dc.identifier.uri10.1080/10826084.2022.2079137en_US
dc.identifier.urihttp://hdl.handle.net/10315/39509
dc.language.isoenen_US
dc.publisherTaylor & Francisen_US
dc.rightsThis is an Accepted Manuscript of an article published by Taylor & Francis in Substance Use & Misuse on May 27, 2022, available at: http://www.tandfonline.com/10.1080/10826084.2022.2079137en_US
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.articlehttp://www.tandfonline.com/10.1080/10826084.2022.2079137en_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectcannabisen_US
dc.subjectmarijuanaen_US
dc.subjectimpaired controlen_US
dc.subjectaddictionen_US
dc.subjectyoung adultsen_US
dc.subjectcollege studentsen_US
dc.subjectcannabis problemsen_US
dc.subjectmeasurementen_US
dc.subjectfactor analysisen_US
dc.titleMeasuring impaired control over cannabis use: Initial evaluation of the Impaired Control Scale-Cannabis (ICS-C)en_US
dc.typeArticleen_US

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